Reciprocating conveyer.



A. C. JEFFERSON.

RECIPROCATING CONVEYER.

APPLICATION FILED APR.22, 19l4.

Patented Aug. 3, 1915.

ZUJ'IZIZGSSeS arcade 6. JfferSon (by a any COLUMBIA PLANOCIRAPH C0-, WASHINGTON. n. c.

snares RECIPROCATING CONVEYEIRI.

Application filed April 22, 1914.

of Minnesota, have invented new and useful: Improvements in Reciprocating Conv veyers, of which the following is a specification.

My invention relates to improvements in reciprocating conveyers.

Its object is to provide a simple and efficient c'onveyer adapted to cohperate with and be actuated by an ordinary endless carrier, or the like, whereby objects may be transferred, one by one, from a source of supply and placedon said carrier.

A further object is to provide a device of this kind automatically adjustable to accommodate itself to objects of different dimensions.

In the drawings, Figure I is a side elevation of my improved conveyer, portions thereof being broken away to show the lugs on one side of the support, and Fig. 2' is a plan view of said conveyer.

Referring tothe accompanying drawings, I have illustrated one section 10 of the common horizontal endless carrier, which is supplied with ordinary blockengaging fingers 1 1 and alsowith the actuating dog 12, more fully hereinafter described, An inclined block-supporting slide 13 and yielding block-retaining plungers 14, which may be of ordinary or suitable construction, are also shown. 7

My improved con-veyer consists'of a pair of supporting brackets 15, thechair 16 slida-ble thereon and mechanism for reciprocating the chair. Said chair passes backward and forward between the slide 13 and endless carrier (one section 10 thereof being shown) to supply the latter with blocks from the former. v p

The brackets 15 are fixed in parallel relation on the frame 17 and each of said brackets is formed with atrack 18 on its upper edge, a longitudinal slot 19 therein and adjacentlugs 20- and 21 near one end thereof and on the inner slde beneath said slot.

The chair 16 comprises a seat 22, supporting webs 23 depending from said seat and a back 24:, said seat and back having portions thereof cut away to reduce the weight of said chair. The webs 23 are mounted upon a transverse shaft 25 slidable at its ends Specification of Letters I Paten't.

Patented Aug; 3; 1915.

Serial No; 833,651.

in the slots 19 in the brackets 15,- and each of said webs 23 is supplied at its lower end and upon its outer face with a roller 26 adapted to engage the lugs 20 and 21 on the adjacent bracket. The relation of said lugs and rollers is such that when the chair 16 reaches a position near the end of its backward stroke, the rollers 26 engage the lugs 21 and tilt said chair rearwardly and when the chair is moved forward from the rear of the brackets-,- therollers 26 engage the lugs 20 and erect said chair. The seat 22 slides upon the tracks 18; when the chair is at the forward ends of the brackets 15 andsaid seat extends upon either side of the shaft 25 to steady and prevent the tilting. of the chair in such position, p, v k

The following mechanism is employed to reciprocate the chair.- Two toothed quadrants 27 and 28, havingarms 29 and 30 with rollers 31 thereon, are pivoted upon the frame 17,, These quad-rants mesh at opposite sides with the double faced rack bar 32, which is mounted upon the reciprocating shaft-33 slidable within the bearing 34 on said frame. The extensibleconnecting rod 35 joins thereciprocating shaft 33 with the chair 16'. This connecting rod consists of the sleeve 36 ivotally attached to the transverse shaft 2? on the chair and the bar 37 pivotally attached" to said reciprocating shaft 33, said bar being slidable within the sleeve and yieldingly retained therein by the spring 38' which is coiled about said sleeve and attached at one end thereto and at its other end to said bar.

The dog 12', above referred to, is fixed upon the carrier 10 in position to engage the rollers 31 on the arms'29 and 30 of the quadrants 27 and 28'. The fingers 11 are mounted in rows near the top and bottom of each carrier section f0 and said fingers" yield to, receive a block from the chair I6 and firmly clamp said bl'ockupon the carrier section.

In operation the chair, when titled, depresses the yielding blockreta'in'i'ng plunger's I4 and receives a Block 39; mementof the carrier section 10 from the position and in the direction indicated in Fig; '2 causes the engagement of the dog 12 with the roller 31 on the first arm 29 and advances the chair 16. Upon the initial movement of said chair, the rollers 26 engage the lugs 20 and tilt the chair forward until it reaches a vertical position, when said rollers become disengaged from the lugs 20. Near the end of the throw of the arm 29 the block 39 is forced between the yielding fingers l1 and pressed against the carrier 10, said fingers 11 serving to firmly grip and secure the block upon said carrier. i

The extensible connecting rod 35 permits still farther movement of said arm 29 so that it may be released from the dog 12. This continued movement of the arm 29 after the engagement of a block with said carrier 10, ispermitted, owing to the resiliency of the spring 88, and it will be noted that when the blocks being transferred to the carrier '10 are of varying dimensions they cause the chairto stop in different positions'and the arm 29,to be released from the dog 12, has only ,to swing a greater or less distance against the action of saidspring 38. It is therefore obvious that the forward stroke of the chair is automatically varied or adjusted to accommodate blocks of different thickness without interfering with the operation of connected working parts. The second arm 30 is moved-by said dog 12- and the chair 16' is returned to the rear of the brackets. Near the end of the backward stroke of the chair the rollers 26 engage the lugs 21 and said chair is again tilted to operate the yielding plunger-s 14 and receive another block, from the slide 13.

Having described my invention, what I 'claimas new and desire to protect by Let ters Patent, is: '1. In a conveyer, the combination with a carrier and block-feeding device of a stationary support, a chair for blocks, resting on said support and havinga slidable, pivjotal connection therewith, means operated the carrier for reclprocating the chair between said feeding device and carrier, and

'- means for tilting the chair toward said feeding device at one end of its stroke to receive block, said reciprocating means being adapted to yield in moving said chair .toward the carrier, whereby a block thereon is yieldingly pressed against said carrier.

2. In a conveyer, the combination with a carrier and block-feeding device of a stationary support, a chair for blocks, resting on said support and having a slidable, pivotalconnection therewith, means for recip rocating the chair between said feeding device and carrier, means for tilting the chair toward said feeding device at one end of its stroke to receive a block, said reciproeating means being adapted to yield in moving said chair toward the carrier, and temporarily hold a block thereon in resilient contact with said carrier, and means to prevent the tilting of the chair except at said end of its stroke. V Y

'3. In a conveyer, the combination with a moving carrier and yielding retaining devices, of a support, a chair movable upon said support, means actuated by the movement of said carrier to reciprocate the chair between the carrier and retaining devices and means on said support for tilting the chairto displace said retaining devices.

41111 a conveyer, a pair of b'rackets,each

having a track upon its upper edge and being also formed with a longitudinal slot therein, a reciprocating.chair'slidably and tiltably mounted in said slots, theseat of said chair being adapted to rest upon said tracks during a portion of its stroke tore- I a shaft slidable and tiltable in said slots, a

chair fixed on the shaft and adaptedto slidably engage said tracks at points on. either side of said shaft, a roller on the chair beneath the shaft and lugs adapted to engage said roller to tilt the chair rearwardly and also to replace said chair in upright position. 7 1 V 6. In a conveyer, a frame, a support upon the frame, a chair movable uponsaid support, a pair of toothed quadrants on said frame, an operating arm for each quadrant, a reciprocating rack in mesh with both of said quadrants and a connecting rod between said rack and chair comprising a sleeve pivoted on said shaft, a bar pivotally connected with the rack and slidable within said sleeve and a spring between said bar and sleeve for yieldingly holding the former within the latter.

In testimony whereof, I have signed my Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, i Washington, .D. G. W I I 

